RM750x (2021) enough for 5800X3D + RX 7900XT?

[fastfishy2]

Just managed to snag a Sapphire Pulse 7900XT on sale here and my 4070 is in pretty good condition so I should be able to make a decent buck back on that. 

I checked on outervisions' PSU calculator and they were saying I should have heaps of headroom, even with a bunch of USB devices running, light strips, and 4 case fans. 

 

I'm excited to put it into my system, which uses a year-old RM750X from Corsair. 80+ gold, highly reviewed, was A tier last I checked.

Anyway, that being said, I'm not sure what to trust. Outervision's calculator is accurate but doesn't account for load spikes, and I'd rather just return the 7900XT in box if it's going to be banging over my power limits all the time. I have a big and well ventilated case too.

 

R7 5800X3D, 32GB DDR4-3200, B550-A Strix, 2 NVME drives, 2 monitors, 6 case fans running relatively slowly, a couple of corsair ARGB light strips & some external USB devices. The calculator threw out some max load wattage at around 568 watts.

[PDifolco]

15 minutes ago, fastfishy2 said:

Just managed to snag a Sapphire Pulse 7900XT on sale here and my 4070 is in pretty good condition so I should be able to make a decent buck back on that. 

I checked on outervisions' PSU calculator and they were saying I should have heaps of headroom, even with a bunch of USB devices running, light strips, and 4 case fans. 

 

I'm excited to put it into my system, which uses a year-old RM750X from Corsair. 80+ gold, highly reviewed, was A tier last I checked.

Anyway, that being said, I'm not sure what to trust. Outervision's calculator is accurate but doesn't account for load spikes, and I'd rather just return the 7900XT in box if it's going to be banging over my power limits all the time. I have a big and well ventilated case too.

 

R7 5800X3D, 32GB DDR4-3200, B550-A Strix, 2 NVME drives, 2 monitors, 6 case fans running relatively slowly, a couple of corsair ARGB light strips & some external USB devices. The calculator threw out some max load wattage at around 568 watts.

You're good

I'm using a 5900X and a 7900XTX on a RM850x, and don't even touch 700W consumption

 

[fastfishy2]

5 minutes ago, PDifolco said:

You're good

I'm using a 5900X and a 7900XTX on a RM850x, and don't even touch 700W consumption

 

not even in the spikes? I know the RMx series can be really tolerant on how far they'll go over their rated wattage before they actually start having issues.

[PDifolco]

Just now, fastfishy2 said:

not even in the spikes? I know the RMx series can be really tolerant on how far they'll go over their rated wattage before they actually start having issues.

7900XTX spikes to 500W (at max PL+15) but CPU rarely over 100W in gaming (when GPU is at full throttle), +100W for drives fans etc

iirc OCP triggers at 115% of rated power so a 750W will only shutdown at around 900W, you really have headroom

[fastfishy2]

1 minute ago, PDifolco said:

7900XTX spikes to 500W (at max PL+15) but CPU rarely over 100W in gaming (when GPU is at full throttle), +100W for drives fans etc

iirc OCP triggers at 115% of rated power so a 750W will only shutdown at around 900W, you really have headroom

Ah okay, that explains the headroom a bit better.

 

This'll be my first time on Team Radeon since the old glory days of the R9 380X, which was also a Sapphire card. 

 

How do you find the drivers and overall experience of the cards? I know it used to be slightly clunky but still fairly straightforward with driver updates and such.

[PDifolco]

12 minutes ago, fastfishy2 said:

Ah okay, that explains the headroom a bit better.

 

This'll be my first time on Team Radeon since the old glory days of the R9 380X, which was also a Sapphire card. 

 

How do you find the drivers and overall experience of the cards? I know it used to be slightly clunky but still fairly straightforward with driver updates and such.

I really like Adrenalin, got it before NVidia redesigned their software and previous ones were crap

Only issue is that you can't autoload a profile at start (with OC settings), that's really a bummer

Drivers have worked well for me, have really infrequent crashes (like 2 in 200hrs playing Cyberpunk...)

Build quality is good on my card, only issue is a bad hotspot temp (like +30C to average at high loads), seems due to bad contact in some places on the non flat chip/chiplets

[fastfishy2]

4 minutes ago, PDifolco said:

I really like Adrenalin, got it before NVidia redesigned their software and previous ones were crap

Only issue is that you can't autoload a profile at start (with OC settings), that's really a bummer

Drivers have worked well for me, have really infrequent crashes (like 2 in 200hrs playing Cyberpunk...)

Build quality is good on my card, only issue is a bad hotspot temp (like +30C to average at high loads), seems due to bad contact in some places on the non flat chip/chiplets

yeah, I reckon I'm just gonna slap it in my system, get the drivers, and run everything by default. AFTER the appropriate DDU sweep, of course.

 

[PDifolco]

27 minutes ago, fastfishy2 said:

yeah, I reckon I'm just gonna slap it in my system, get the drivers, and run everything by default. AFTER the appropriate DDU sweep, of course.

 

You can easily get some more performance and less power by just tweaking a couple settings tho